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Manipal MET2011PhysicsThermal Properties of Matter

The heat flows through a rod of length 50 cm and area of cross-section 5 ~cm ^2 . Its ends are respectively at 25^ C and 125^ C . The coefficient of thermal conductivity of the material rod is 0.092 kcal / m ^ C . The temperature gradient of the rod is

Options

  1. A2^ C / cm
  2. B2^ C / m
  3. C20^ C / cm
  4. D20^ C / m

Correct answer

A. 2^ C / cm

Step-by-step solution

Temperature gradient of the rod x = ₂- ₁ l x = 125-25 50 = 100 50 =2^ C / cm

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